UOP 311-02 is a laboratory test method for Hydrocarbon Types by Fluorescent Indicator Adsorption (FIA), giving technical teams a structured way to evaluate hydrocarbon type composition in petroleum-related samples. By focusing on hydrocarbon type separation and identification through FIA, the method supports product characterization, quality review, and comparison work where understanding the balance of hydrocarbon classes matters. It is a practical reference for organizations that need a consistent UOP 311-02 method for laboratory analysis, refinery QA/QC, and technical documentation.

UOP 311-02 method scope

This UOP test method is centered on hydrocarbon type analysis using fluorescent indicator adsorption, a classic laboratory approach for separating and assessing hydrocarbon classes. In practice, UOP 311-02 is relevant when a lab needs a defined method for evaluating the hydrocarbon type makeup of a sample rather than a broad property screen. The method is commonly associated with petroleum and fuel testing workflows where composition insight supports product evaluation, analytical comparison, and reporting consistency across samples and batches.

Where is UOP 311-02 used?

UOP 311-02 is typically used in refinery laboratories, petroleum testing facilities, and technical teams that review hydrocarbon composition for quality and specification support. Laboratory analysts and analytical chemists may use it during sample evaluation, while refinery QA/QC personnel and product quality specialists may rely on it for routine verification or comparison work. It can also be useful for fuel testing groups and technical reviewers who need a recognized UOP method tied to hydrocarbon type characterization in operational laboratory settings.

Why professionals use UOP 311-02

Professionals use UOP 311-02 because hydrocarbon type information can be important for understanding product behavior, comparing batches, and documenting analytical results in a consistent way. For labs and refinery teams, the method helps support clearer quality decisions by providing a standard approach to FIA-based hydrocarbon type assessment. It is especially valuable when technical work depends on repeatable laboratory documentation, dependable sample review, and a method choice that aligns with petroleum analysis practices and internal quality control expectations.

• Hydrocarbon type evaluation by FIA
• Petroleum and fuel laboratory analysis
• Refinery QA/QC support
• Sample comparison and product review
• Analytical documentation for technical teams